Package org.twodividedbyzero.idea.findbugs.actions

Source Code of org.twodividedbyzero.idea.findbugs.actions.ShowPreferencesPage

/*
* Copyright 2008-2013 Andre Pfeiler
*
* This file is part of FindBugs-IDEA.
*
* FindBugs-IDEA is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* FindBugs-IDEA is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with FindBugs-IDEA.  If not, see <http://www.gnu.org/licenses/>.
*/
package org.twodividedbyzero.idea.findbugs.actions;

import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.actionSystem.DataKeys;
import com.intellij.openapi.actionSystem.Presentation;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.options.ShowSettingsUtil;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.wm.ToolWindow;
import org.jetbrains.annotations.NotNull;
import org.twodividedbyzero.idea.findbugs.common.event.EventListener;
import org.twodividedbyzero.idea.findbugs.common.event.EventManagerImpl;
import org.twodividedbyzero.idea.findbugs.common.event.filters.BugReporterEventFilter;
import org.twodividedbyzero.idea.findbugs.common.event.types.BugReporterEvent;
import org.twodividedbyzero.idea.findbugs.common.exception.FindBugsPluginException;
import org.twodividedbyzero.idea.findbugs.common.util.IdeaUtilImpl;
import org.twodividedbyzero.idea.findbugs.core.FindBugsPluginImpl;


/**
* $Date: 2013-12-05 08:09:56 -0600 (Thu, 05 Dec 2013) $
*
* @author Andre Pfeiler<andrepdo@dev.java.net>
* @version $Revision: 257 $
* @since 0.9.85-dev
*/
public class ShowPreferencesPage extends BaseAction implements EventListener<BugReporterEvent>/*, CustomComponentAction*/ {

  private static final Logger LOGGER = Logger.getInstance(ShowPreferencesPage.class.getName());

  private AnActionEvent _actionEvent;
  private DataContext _dataContext;
  private boolean _enabled;
  private boolean _running;


  @Override
  public void actionPerformed(final AnActionEvent e) {
    _actionEvent = e;
    _dataContext = e.getDataContext();

    final com.intellij.openapi.project.Project project = DataKeys.PROJECT.getData(_dataContext);
    ShowSettingsUtil.getInstance().editConfigurable(project, IdeaUtilImpl.getPluginComponent(project));
  }


  @Override
  public void update(final AnActionEvent event) {
    try {
      _actionEvent = event;
      _dataContext = event.getDataContext();
      final com.intellij.openapi.project.Project project = DataKeys.PROJECT.getData(_dataContext);
      final Presentation presentation = event.getPresentation();

      // check a project is loaded
      if (isProjectNotLoaded(project, presentation)) {
        return;
      }

      isPluginAccessible(project);

      // check if tool window is registered
      final ToolWindow toolWindow = isToolWindowRegistered(project);
      if (toolWindow == null) {
        presentation.setEnabled(false);
        presentation.setVisible(false);

        return;
      }

      registerEventListener(project);

      _enabled = !isRunning();

      presentation.setEnabled(toolWindow.isAvailable() && isEnabled());
      presentation.setVisible(true);

    } catch (final Throwable e) {
      final FindBugsPluginException processed = FindBugsPluginImpl.processError("Action update failed", e);
      LOGGER.error("Action update failed", processed);
    }
  }


  private void registerEventListener(final Project project) {
    final String projectName = project.getName();
    if (!isRegistered(projectName)) {
      EventManagerImpl.getInstance().addEventListener(new BugReporterEventFilter(projectName), this);
      addRegisteredProject(projectName);
    }
  }


  @Override
  protected boolean isEnabled() {
    return _enabled;
  }


  @Override
  protected boolean setEnabled(final boolean enabled) {
    final boolean was = _enabled;
    if (_enabled != enabled) {
      _enabled = enabled;
    }
    return was;
  }


  protected boolean isRunning() {
    return _running;
  }


  protected boolean setRunning(final boolean running) {
    final boolean was = _running;
    if (_running != running) {
      _running = running;
    }
    return was;
  }


  public void onEvent(@NotNull final BugReporterEvent event) {
    switch (event.getOperation()) {
      case ANALYSIS_STARTED:
        setEnabled(false);
        setRunning(true);
        break;
      case ANALYSIS_ABORTED:
      case ANALYSIS_FINISHED:
        setEnabled(true);
        setRunning(false);
        break;
      case NEW_BUG_INSTANCE:
        break;
    }
  }
}
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